They had talked only for a few minutes ________ they found they were of different opinions.
时间:2019-11-08 19:26来源:未知 作者:admin 点击:
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5. They had talked only for a few minutes ________ they found they were of different opinions.
A. unless
B. while
C. before
D. once
5. They had talked only for a few minutes ________ they found they were of different opinions. A. unless
B. while
C. before
D. once
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